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What is the moment of inertia of an object that rolls without slipping down a 2.42...

What is the moment of inertia of an object that rolls without slipping down a 2.42 m-high incline starting from rest, and has a final velocity of 6.56 m/s? Express the moment of inertia as a multiple of MR^2, where M is the mass of the object and R is its radius.

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